I have repaired a few dash assemblies including one S1000RR dash, they operate at 5v internally and the 5v regulator has a very aggressive protection routine which turns it off if over current is detected, on the assemblies I have worked on it has always been dirt build up causing leakage currents so cleaning the circuit board has resolved the problems.
Your symptoms are a little different though, none of the assemblies I have looked at required cycling ignition. One possibility is the firmware may be getting to a combination of events it cant resolve and so is shutting down, check all incoming wiring to the unit to see if a sensor signal is causing the problem
